[FFmpeg-trac] #1757(swscale:new): Support converting to GBRP

[FFmpeg]

#1757: Support converting to GBRP
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               Reporter:  cehoyos      |                  Owner:
                   Type:  enhancement  |                 Status:  new
               Priority:  wish         |              Component:  swscale
                Version:  git-master   |               Keywords:  gbrp
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
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 The dpx encoder supports different GBRP colour-spaces, but the scaler
 cannot convert into GBRP.
 {{{
 $ ffmpeg -i tests/lena.pnm -pix_fmt gbrp10 out.dpx
 ffmpeg version N-44649-g6d87781 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Sep 20 2012 22:52:22 with gcc 4.5.3 (GCC)
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
   libavutil      51. 73.101 / 51. 73.101
   libavcodec     54. 56.100 / 54. 56.100
   libavformat    54. 27.101 / 54. 27.101
   libavdevice    54.  2.101 / 54.  2.101
   libavfilter     3. 16.106 /  3. 16.106
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, image2, from 'tests/lena.pnm':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: ppm, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc
 Impossible to convert between the formats supported by the filter
 'Parsed_null_0' and the filter 'auto-inserted scaler 0'
 Error opening filters!
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1757>
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